We felt a little dumb and waited for the hot water. The boiler seemed not to work and we started to become upset. We asked the technician to come once again and he admitted his mistake.I understand that you use the article 'die' when talking about a feminine object, das when the subject is neutral, and der when talking about a masculine object. But how can you remember all these?The next two hours we were busy with moving our stuff to our new place and organizing our trip to Machu Picchu for the next day.